Messages in this thread | | | Date | Mon, 10 Nov 2008 09:55:55 -0500 (EST) | From | Mikulas Patocka <> | Subject | Re: Queue upcall locking (was: [dm-devel] [RFC][PATCH] fix dm_any_congested() to properly sync up with suspend code path) |
| |
On Mon, 10 Nov 2008, Peter Zijlstra wrote:
> > If you have a physical disk that has many LVM volumes on it, you end up in > > a situation when disk congestion state change is reported to all the > > volumes. So it will create O(n) problem at the other side. > > *sigh* I can almost understand why people want to use lvm to combine > multiple disks, but why make the partition thing even worse...
To protect the services from each other --- so that mail storm won't blow user's directories, users blowing their space can't corrupt the system updates, logs are kept safely even if other partition overflows etc.
I just know some admins who prefer to have separate filesystems instead of quotas for this purpose.
Mikulas
| |